Table 2.

Anticipated outputs and impact

	Planned outputs	Anticipated impact
Phase 1 Video recording of consultations, plus interviews	15 detailed vignettes of decision making for high-risk surgery 3–5 draft decision-making scenarios, summarising patient pathways and decision making	Increased understanding (within and beyond OSIRIS) of the process of decision making. Identification of the long-term outcomes that matter most to patients contemplating major surgery
Phase 2 Focus groups with patients, carers and clinicians	Typology of decision-making scenarios Exemplar vignettes and videos (with consent) providing insights into decision making for high-risk surgery Research publications and presentations, plus accessible summaries of key findings Leaflet and web download for patients and families.	Inform codesign, with patients and doctors, of a decision support intervention to be tested in a clinical trial Refined theory of shared decision making relevant to high-risk surgical patients Improved guidance for clinicians, patients and providers Increased understanding of what to expect when making a decision about major surgery.

OSIRIS, Optimising Shared decision-makIng for high-RIsk major Surgery.